Remove `trackNavBetweenImages` function call from hosted content gallery

[arelra]

What is the value of this and can you measure success?

We had a bug report that hosted content galleries pagination feature was not updating the page number or the URL hash.

Hosted content is full-page advertiser content. This content is created by advertisers and hosted by the Guardian. Hosted content paths begin with /advertiser-content.

An example of a hosted content gallery:

https://www.theguardian.com/advertiser-content/microsoft-ai-for-earth/meet-the-changemakers

What does this change?

This changes removes calls to the function trackNavBetweenImages that no longer exists which caused an exception to be thrown. This appears to be a regression introduced in https://github.com/guardian/frontend/pull/27188

[prout-bot]

Seen on FRONTS-PROD, ADMIN-PROD (merged by @arelra 18 minutes and 31 seconds ago)

• Check your changes on www.theguardian.com ✔️
• Keep an eye on the deploy dashboard&_a=(description:'',filters:!(),fullScreenMode:!f,options:(darkTheme:!f,useMargins:!f),panels:!((gridData:(h:4,i:'4',w:6,x:6,y:0),id:'735f9ce0-4a04-11e7-9f15-395e2d1c9b1f',panelIndex:'4',type:visualization,version:'6.2.4'),(gridData:(h:4,i:'5',w:6,x:0,y:0),id:b9249830-4a03-11e7-91e8-2fbfd59c38bb,panelIndex:'5',type:visualization,version:'6.2.4'),(gridData:(h:4,i:'7',w:6,x:0,y:4),id:ac507b90-4a0f-11e7-9f15-395e2d1c9b1f,panelIndex:'7',type:visualization,version:'6.2.4'),(gridData:(h:4,i:'9',w:6,x:6,y:4),id:a5f78860-4ad2-11e7-9930-73b4968e85d8,panelIndex:'9',type:visualization,version:'6.2.4')),query:(language:lucene,query:(query_string:(analyze_wildcard:!t,query:'stage:PROD%20NOT%20app:preview'))),timeRestore:!f,title:'Frontend%20PROD%20Deploy',viewMode:view)) 📉